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A Holistic Remedy to the Plastic Era Through a High-Performance Photocatalytic System
Original title: A holistic remedy to the plastic era through a high–performance photocatalytic system
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This review paper takes stock of a promising technology called photocatalysis, which uses light (potentially sunlight) to break down harmful microplastics and even convert plastic waste into useful chemicals. Since plastic pollution—including the tiny microplastic particles we're increasingly exposed to through food, water, and air—poses growing risks to human health, this approach offers a more sustainable alternative to traditional recycling. The researchers highlight current limitations in the technology and outline what needs to improve before it can be widely used to tackle plastic waste.
The increasing detrimental effects of plastic pollution on human health, societal systems, and the global economy demand urgent intervention. Effective management and control of plastics through preventive strategies, particularly considering their environmental fate and distribution across ecosystems, can enable plastics to be utilized as valuable carbon-rich feedstocks for the synthesis of high-value chemicals, thereby supporting global resource recovery initiatives. Conventional recycling approaches face significant limitations, highlighting the need for integrated strategies that combine efforts to reduce plastic waste generation with the implementation of innovative upcycling technologies. Among advanced treatment technologies, photocatalysis (PC) has emerged as a promising approach within advanced oxidation processes (AOPs), demonstrating high efficiency and sustainability in both the degradation of microplastics (MPs) and the upcycling of plastic wastes. This review systematically evaluates photocatalyst selection and pretreatment strategies to enhance solar-to-fuel conversion efficiency. Furthermore, it elucidates the mechanistic pathways involved in photocatalytic degradation (PCD) of MPs and photocatalytic upcycling (PCU) of plastics, while identifying key performance limitations and technological bottlenecks. Finally, the review proposes strategic research directions to improve the efficiency of PCU and provides a comprehensive perspective for researchers working in this field.
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This review examines the sources, characteristics, and environmental impacts of plastic waste, including how plastics degrade into micro- and nano-sized particles that spread through air, water, and soil. Researchers highlight photocatalysis as a promising green technology for breaking down plastic waste and potentially converting it into useful products. The study emphasizes that plastic pollution threatens both ecosystems and human health through food chain contamination and direct chemical exposure.
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This review examines photocatalytic technologies that use light-activated materials to break down microplastics in the environment. Various catalysts can generate reactive oxygen species that degrade plastic polymers into simpler, less harmful molecules. The authors assess the strengths and limitations of different photocatalytic approaches and highlight the need for scalable solutions that work under real-world environmental conditions.
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This review summarizes how photocatalysis, a process that uses sunlight and special materials to trigger chemical reactions, could potentially break down microplastics in water. While the technology is still in its early stages, it offers a promising approach to degrading the microplastics that have been detected in human blood, breast milk, and organs.
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